"cat" <spear.fire@btopenworld.com> wrote in message
news:bf9cpd$4h4$1@hercules.btinternet.com...
> I have just purchased a Panasonic widescreen TV. When I use the digital
box
> through the TV with the 16:9 setting it fills the screen. However, in
> analogue mode there are black bars top and bottom. Why is this. Shouldn't
> 16:9 fill the screen on both settings.
>
> I have googled this but found nothing similar and appreciate it could be a
> faq but would like some advice from the experts
>
>

It depends on what the broadcaster outputs in the respect transmissions: -

4:3 original is normally output as 4:3 in both systems, giving black bars at
the side on 16:9.  You can manually zoom, but will lose quite a lot of the
top and bottom of the picture and resolution.

16:9 will by out put 16:9 on DTT, but may either be cropped (e.g. BBC News)
or letterboxed (e.g. some films) on analog.  You can zoom up the letterbox
(in 4:3) to fill the screen, but the resolution will be poor.

The weirdest are some US sports events that come as a 16:9 letterbox within
a 4:3 crop.  Some sets will be able to blow these up, but resolution will be
well down.

Q.  Are there any sets where you can blow up a portion of the image (e.g.
DTT parliamentary channel)?